| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a sealing device capable of improving service life and reducing cost. <P>SOLUTION: This sealing device 14 is arranged in a clearance between a rotary shaft 82 and a housing 80 arranged around the rotary shaft 82 to seal a high pressure chamber 84 provided in the clearance and having high pressure. This sealing device 14 is provided with a main body member 30 made of an elastic material and a reinforcing member 40 made of a rigid material. The main body member 30 is a member extending to a high pressure chamber side along the rotary shaft 82 and supporting internal pressure in the high pressure chamber 84 and has a member for changing contact pressure with the rotary shaft 82 in accordance with change of internal pressure in the high pressure chamber. A part of the reinforcing member 40 is buried in the inside of the main body member 30 to reinforce the main body member 30, and the reinforcing member 40 is abutted on a bearing 12 arranged on the high pressure chamber side to add pre-load to the bearing 12. <P>COPYRIGHT: (C)2007,JPO&INPIT |
